Rose for mortise lock



Oct. 29, 1957 "R. w. SCHMID ROSE FOR MORTISE LOCK 2 Sheets-Sheet 1 Filed Dec. 1, 1954 INVENT OR.

/f M. o/M/a/ ATTORNEY 1957 R. w. SCHMID 2,811,384

ROSE FOR MORTISE LOCK Filed Dec. 1, 1954 2 Sheets-Sheet 2 IN VEN TOR.

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ATTORNL'Y United Sites Pate ROSE FOR MORTISE LOCK Raymond W. Schmid, Havertown, Pa., assi'gnor to The Yale & Towne Manufacturing Company, Stamford, Conn., a corporation of Connecticut Application December 1, 1954, Serial No. 472,477

' 3 Claims. (Cl. 292-357 This invention relates to means for securing a knob rose to a door. More particularly, this invention relates to means securing a knob rose to a door that has been mortised for housing a mortise lock.

Those skilled in the art fully appreciate that a mortise lock is adapted to be housed in a mortise opening formed in the door. Wood doors, even if rather thick, will have relatively thin walls remaining after being mortised; It then becomes rather difficult to apply a knob rose since only extremely short wood screws may be entered into the relatively thin walls of the door. These wood screws tend to loosen, and the roses in turn loosen and do not support 'the knob and spindle in proper operating relation to the lock.

Even where the remaining walls of the door are relatively thick, the wood screws are diificult to put into position so as to hold the rose in proper alignment to the knob, its spindle, and the door lock. Those skilled in the art fully appreciate that it is inherent in wood screws to slip and move as they are screwed into wood. In view of this, it has for a considerable period of time been recognized that the application of mortise lock roses is a matter of considerable difiiculty and that wood screws are not satisfactory. Attempts have been made to utilize various compound rose securing means involving roses that are threaded for cooperation with threaded fastener sleeves, but such means are expensive and are not satisfactory be cause the roses are then secured Without any engegement or other connection relatively to the lock itself. Therefore, the knobs supported by the roses and the spindles actuated by the knobs tend to bind or otherwise impair the operation of the mortise lock.

As a feature of my invention, 1 provide means for securing each rose or rose support to a thin wood wall such as remains after a door has been mortised for a large mortise lock. These means comprise a gripper that is carried by a lock within the lock opening, and that is engaged through screw threaded means with the rose or with support means for forcing the rose or support means against the face of the door.

As a further feature of my invention, the grippers carried by the lock case are preferably slidable axially relatively to the lock case so that, when the roses are secured to the grippers with the thin Walls of the door therebetween, the grippers and roses are maintained in proper relation to the lock case and thus enable the knob operated spindle to move freely and effectively.

As a further feature of the invention, the gripper is applied to the lock case and is inserted into the mortise opening in the door, together with the lock case. The rose or its support carries screws adapted to enter transverse openings in the thin door wall remaining after the door has been mortised for the lock case, and these screws Wedge the rose or its support against one side of the door while wedging the gripper against the inside surface of the mortise opening. This action of the screws effects the securing of the rose to the door while effectively locating the rose relatively to the door and the door lock, due to the fact that the gripper slides relatively to the door lock in predetermined relation as it is wedged against the .door incidental to the securing of the roses.

I have thus outlined rather broadly the more important features of my invention in order that the detailed description thereof that follows-may be better understood, and in order that my, contribution to the art may be better appreciated. There are, of course, additional features of my invention that will be described hereinafter and which will form the subject of the claims appended hereto. Those skilled in the art will appreciate that the conception on which my disclosureis based may readily be utilized as a basis for the designing of other structures for carrying out the several purposes of my invention. It is important, therefore, that-the claims be regarded as including such equivalent constructions as do not depart from the spirit and scope of my invention as defined in the claims, in orderto prevent the appropria tion of my invention by those skilled in the art;

Referring now to the drawings:

Fig. 1 is a sectional view showing my extremely novel rose securing means utilized'with a mortise lock.

Fig. 2 is a perspective view of the lock case;

Fig. 3 is a perspective view of anovel gripper that I utilize in my invention.

Fig. 4 shows the gripper assembled to the lock case.

For the purpose of describing my invention, I show in Fig. 1 an edge portion of a door D that is mortised to form an opening 10 for a lock case 11. This lock case 11 is equipped with ausual front plate 12 through which the case is mounted on the door D, but the details of the case mounting are not important to an understanding of my invention. It is important, however, to observe that the mortise opening 10 leaves relatively thin walls 13 on the door at the opposed sides of the opening 10, and that the knob roses 14 are mounted relatively to these thin walls at opposed faces of the door. In the prior art, it is the mounting of the roses on the thin door walls that has been a very'considerable problem.

While mounted on the thin walls 13 of the door, each rose 14 in locks of the particular class supports a knob 15 that in turn supports one end of a lockspindle 16. Merely for purposes of illustration, I show'a circular bearing flange 17 on each rose 14,with a sleeve portion 18 of the knob 15' rotating on the flange 17 and attached integrally to one'end of the spindle 16. Moreover, the spindle 16 extends through openings 19 in the lock case 11, each thin wall'13 of the door being formed with a relatively large opening 20 for the spindle and knob.

sleeve 18. Those skilled in the art willappreciate that in an arrangement of this type, it is important that the roses 14 be so mounted as to remain in aligned relation to the openings 19 in the lock 11. I shall now describe in detail the extremely novel means that I have contributed for mounting the knob roses 14 permanently upon the thin walls 13 of the door, with the roses maintained in properly aligned positions on the door.

I utilize for securing each rose 14, a series of'machine screws 21 that are adapted to extend inwardly from openings 22 in the rose through bores 23 formed in the thin wall 13 on the door. It will be observed here that the bores 23 are relatively large, so that the screws 21 are out of contact with the wall 13, and it is unnecessary therefore to use great care in forming the bores 23. For coacting with the machine screws 21 in the mortise opening 10, I provide novel grippers 24, well shown in Figs.

1, ,3, and 4. I prefer to utilize each gripper 24 for coact ing as a unit with all of the screws 21 on a particular rose 14 and I therefore form on each gripper a base portion 25 that is suihciently large to extend opposite each of the machine screws 21 on the rose.

The base portion 25 is substantially flat whereby to lie intermediate a side of the lock case 11 and the inner surface of the mortise opening 10, and has a large central opening 26 to provide clearance relatively to the spindle 16 and knob sleeve 18. I further form on each gripper 24 a series of sleeve portions 27 that extendinwardly away from the base portion 25. These sleeve portions 27 are positioned to correspond with the spacing of the machine screws 21 on the rose, and are threaded for engagement with the screws.

I arrange a novel coaction between each gripper 24 and the lock case 11, and for the particular purpose I form each side of the case 11 with openings 28 adapted to receive the sleeve portions 27 on the corresponding gripper 24. It should be noted at this point that the openings 28 are so positioned on the'case 11 as to'hold the grippers 24 in a certainaxial relation to-the spindle openings 19 in the case 11. With the grippers 24 in this position, the screws 21 when engagedin the sleeve portions 27 will hold the roses 14 in positively aligned relation to the spindle openings 19. The roses 14thereby support the spindle 16 in aligned position so that the spindle and knobs can rotate without binding.

Through the extremely novel construction that I have described, the mortise lock can be very readily applied to the door with the roses permanently mounted in aligned positions on the thin walls 13 of the door. The grippers 24 are first applied to the opposed sides of the lock case 11, and are then inserted with the case 11 into the mortise opening 10. After the case 11 is mounted on the door, the machine screws 21 are applied through the roses 14 and the bores 23 in the thin door walls 13, and are engaged with the threaded sleeves 27 on the grippers 24. When the screws 21 are tightened in position, these screws move the grippers 24 against the inner surfaces of the mortise opening 10 and simultaneously wedge the roses 14 against the opposed faces of the door D. I thereby mount the roses 14 actually upon the thin walls of the door at opposed sides of the mortise opening 10, but with the roses positively assembled relatively to the lock case 11. Moreover, the screws 21'coact with the grippers 24 to hold the roses 14 positively aligned relatively to the spindle openings 19 in the lock case 11, and the roses 14 cannot shift out of their aligned position. It will be observed, however, that the sleeve portions 27 of the grippers can move in an axial direction on the lock case 11, so that the case 11 does not itself hold the roses 14 against the door. Since the screws 21 are machine screws and are threaded actually into the grippers 24, they do not loosen over a period of time, and will hold the roses 14 and the spindle 16 permanently in position on the thin walls 13 of the door.

I believe that the construction and operation of my extremely novel rose securing means will now be fully understood, and that the very considerable advantages of my invention will be appreciated by those skilled in the art.

I now claim:

1. In a combination of the class described, a lock case adapted to be mounted in a mortise opening in a door leading inwardly of the door from the edge thereof, the side of said lock case having a spindle opening in which a knob spindle moves for actuating the lock mechanism in said case, said lock case having at least two further openings formed in spaced relation to one another and said spindle opening, at least two sleeve elements each fitting into one of said further openings for sliding movement toward and away from the side of said case, each of said sleeve elements by sliding relatively to the side of the case moving relatively to the inner surface of the door opening in which the case is mounted, a part on each of said elements adapted to fit against the said inner surface of the door while the element is within one of said further openings in the lock case, a rose for the knob spindle having an opening through which the spindle extends into the spindle opening in the lock case, screws extending from said rose and threaded into the sleeve elements for coaction with the elements whereby the rotation of said screws will draw said part of each sleeve element against the inner surface of the door opening while simultaneously pulling the rose against the face of the door, and said sleeve elements when so drawn by the screws remaining within the further openings of the lock case so as to align therose positively in predetermined accurate relation relatively to the lock case. i

2. In a combination of the class described, a lock case adapted to be mounted in an opening in the edge of a door, said lock case havingan opening in which a knob spindle moves, a gripper overlying a side of the lock case and adapted to be inserted with the case into the door opening in which the case is mounted, said side of the lock case having openings formed in spaced relation to one another, a series of projecting portions on said grip per positioned in corresponding openings in the side of the lock case whereby to mount the gripper for sliding toward and away from the side of the case, said gripper including a base acting to hold the projecting gripper portions in position relatively to one another with said portions then holding the gripper in predetermined relation to the axis of the spindle opening of the case in all positions to which the gripper slides relatively to the case, a rose adapted to be fitted against a face of the door for supporting the knob spindle, means extending between said rose and said gripper for moving the gripper inde-. pendently of the lock case against an inner surface of a door opening in which the case is mounted, said means by so moving the gripper securing the rose against the door, and said gripper acting through said means to positively hold the rose in aligned relation to the spindle opening in the lock case whereby the knob spindle will not bind relatively to said spindle opening.

3. In a combination of the class described, a lock case adapted to be mounted in an opening in the edge of a door, said lock case having an opening in which a knob spindle moves, a gripper overlying a side of the lock case and adapted to be inserted with the case into the door opening in which the case is mounted, said side of the lock case having openings formed in spaced relation to one another, a series of sleeve portions on said gripper positioned in corresponding openings in the side of the lock case whereby to mount the gripper for sliding toward and away from the side of the case, said gripper including a base acting to hold the sleeve portions in position relatively to one another with said portions then holding the gripper in predetermined relation to the axis of the spindle opening of the case in all positions to which the gripper slides relatively to the case, a rose adapted to be fitted against a face of the door for supporting the knob spindle, screws extending from said rose and threaded into the sleeve portions of the gripper for moving the gripper independently of the lock case against an inner surface of a door opening in which the case is mounted, said screws by so moving the gripper securing the rose against the door, and said gripper acting through said screws to positively hold the rose in aligned relation to the spindle opening in the lock case whereby the knob spindle will not bind relatively to said spindle opening.

References Cited in the the of this patent UNiTED STATES PATENTS Germany Aug. 4, 1937 

